Question

Select the incorrect statement regarding placenta.

• A. It is a special tissue that develops after implantation of embryo
• B. It is developed between the uterine wall and the embryo
• C. It contains villi on the mother’s side and blood spaces on the embryo’s side
• D. It provides large surface area for transfer of substances from mother to the embryo

Answer 1

The correct option is C It contains villi on the mother’s side and blood spaces on the embryo’s side

After implantation, a special tissue called placenta develops between the uterine wall and the embryo from which the embryo gets nourishment from the mother's blood. It contains villi on the embryo’s side of the tissue and blood spaces on the mother’s side are surrounded by these villi. This provides a large surface area for glucose and oxygen to pass from the mother to the embryo.